Issue 88, 2021

Atomically dispersed metal catalysts on nanodiamond and its derivatives: synthesis and catalytic application

Abstract

Atomically dispersed metal catalysts (ADMCs) have attracted increasing interest in the field of heterogeneous catalysis. As sub-nanometric catalysts, ADMCs have exhibited remarkable catalytic performance in many reactions. ADMCs are classified into two categories: single atom catalysts (SACs) and atomically dispersed clusters with a few atoms. To stabilize the highly active ADMCs, nanodiamond (ND) and its derivatives (NDDs) are promising supports. In this Feature Article, we have introduced the advantages of NDDs with a highly curved surface and tunable surface properties. The controllable defective sites and oxygen functional groups are known as the anchoring sites for ADMCs. Tunable surface acid–base properties enable ADMCs supported on NDDs to exhibit unique selectivity towards target products and an extended lifetime in many reactions. In addition, we have firstly overviewed the recent advances in the synthesis strategies for effectively fabricating ADMCs on NDDs, and further discussed how to achieve the atomic dispersion of metal precursors and stabilize the as-formed metal atoms against migration and agglomeration based on NDDs. And then, we have also systematically summarized the advantages of ADMCs supported on NDDs in reactions, including hydrogenation, dehydrogenation, aerobic oxidation and electrochemical reaction. These reactions can also effectively guide the design of ADMCs. The recent progress in understanding the effect of structure of active centers and metal–support interactions (MSIs) on the catalytic performance of ADMCs is particularly highlighted. At last, the possible research directions in ADMCs are forecasted.

Graphical abstract: Atomically dispersed metal catalysts on nanodiamond and its derivatives: synthesis and catalytic application

Article information

Article type
Feature Article
Submitted
15 sept. 2021
Accepted
07 oct. 2021
First published
07 oct. 2021

Chem. Commun., 2021,57, 11591-11603

Atomically dispersed metal catalysts on nanodiamond and its derivatives: synthesis and catalytic application

X. Chen, Z. Jia, F. Huang, J. Diao and H. Liu, Chem. Commun., 2021, 57, 11591 DOI: 10.1039/D1CC05202K

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